Mole Ratios Practice

Mole Ratios Practice

by Michael Baldwin

Multiple Choice

What is the H2 / H2O molar ratio?

• 1/1

• 2/1

• 1/2

• 4/2

Multiple Choice

What is the O2 / H2O molar ratio?

• 1/1

• 1/2

• 2/1

• 2/3

​Balance this equation:   H2 +  S --->   H2S, and use the balanced equation to answer the questions that follow.

Multiple Choice

​Balance this equation:   H2 +  S --->   H2S, and then use the balanced equation to answer the question that follows:

How many moles of H2S will be produced from 15 moles of Sulfur?

• 7.5

• 15

• 30

• 60

Multiple Choice

​Balance this equation:   H2 +  S --->   H2S, and then use the balanced equation to answer the question that follows:

How many moles of H2S will be produced from 5 moles of hydrogen gas?

• 5

• 10

• 15

• 20

​Using Mole Ratios and Mass

​If one mole of H2 gas has a mass of 2.02 grams, then how many moles of H2O can be made with 8.08 moles of Hydrogen gas?

​

​ 2H2 + O2 => 2 H2O

​

​How many grams of water would be produced from the 8.08 moles of H2?

​Balance this equation:   N2 +    H2 --->  NH3, for the questions that follow.

Multiple Choice

 Balance this equation:   N2 +    H2 --->    NH3

If you used 1 mole of N2, how many moles of NH3 could be produced?

• 3

• 2

• 1

• 0.5

Multiple Choice

 Balance this equation:   N2 +    H2 --->    NH3

If 10 moles of NH3 were produced, how many moles of N2 would be required?

• 20

• 10

• 5

• 0.5

Multiple Choice

 Balance this equation:   N2 +    H2 --->    NH3

If 3.00 moles of H2 were used, how many moles of NH3 would be made?

• 6

• 3

• 2

• 0.5

Multiple Choice

 Balance this equation:   N2 +    H2 --->    NH3

If 0.600 moles of NH3 were produced, how many moles of H2 are required?

• 1.800

• 0.900

• 0.600

• 0.400